无线网络重要KPI指标

1、NOKIA 无线网络重要网络指标NOKIA 无线网络重要网络指标掉话率 DCR_3JTCH拥塞率 RAW_BLK和BLK_8D(Direct retry 功能)TCH话务量和SDCCH话务量上、下行话音质量 DL Quality 0-7 UL Quality 0-7切换失败率 切换出失败率和切换入失败率TCH可用率DCR_3J sum(a.tch_radio_fail+ a.tch_rf_old_ho+ a.tch_abis_fail_call+ a.tch_abis_fail_old + a.tch_a_if_fail_call+ a.tch_a_if_fail_old+ a.tch_tr_

2、fail+ a.tch_tr_fail_old+ a.tch_lapd_fail+ a.tch_bts_fail+ a.tch_user_act+ a.tch_bcsu_reset+ a.tch_netw_act + a.tch_act_fail_call)- sum(b.sdcch_call_re_est + b.tch_call_re_est) ;call re-establ. 100 * - % sum(a.tch_norm_seiz) ;calls started directly in the cell + sum(c.msc_i_sdcch_tch+ c.bsc_i_sdcch_t

3、ch+ c.cell_sdcch_tch) ;DR calls + sum(a.tch_seiz_due_sdcch_con) ;FACCH call setup calls - sum(b.sdcch_call_re_est+b.tch_call_re_est) ;call re-establ. Counters from table(s): a = p_nbsc_trafficBlck_8d sum(a.tch_call_req - a.tch_norm_seiz) - sum(b.msc_o_sdcch_tch + b.bsc_o_sdcch_tch + b.cell_sdcch_tch

4、); DR calls + sum(a.tch_succ_seiz_for_dir_acc) ;ref.2 - sum(a.tch_rej_due_req_ch_a_if_crc ; Aif type mismatch or congestion -(b.bsc_i_unsucc_a_int_circ_type ; Aif circuit pool handover failures + b.msc_controlled_in_ho+ b.ho_unsucc_a_int_circ_type) 100 * - % sum(a.tch_call_req) - sum(a.tch_rej_due_r

5、eq_ch_a_if_crc ; Aif type mismatch or congestion -(b.bsc_i_unsucc_a_int_circ_type ; Aif circuit pool handover failures + b.msc_controlled_in_ho+ b.ho_unsucc_a_int_circ_type) Counters from table(s): a = p_nbsc_traffic b = p_nbsc_hoBlck_8 sum(tch_call_req-tch_norm_seiz) 100* - % sum(tch_call_req) Coun

6、ters from table(s): p_nbsc_trafficHOO_FAIL sum(msc_o_succ_ho + bsc_o_succ_ho + cell_succ_ho) -)% sum(msc_o_tch_tch_at+msc_o_sdcch_tch_at+msc_o_sdcch_at+ bsc_o_tch_tch_at+bsc_o_sdcch_tch_at+bsc_o_sdcch_at+ cell_tch_tch_at+cell_sdcch_tch_at+cell_sdcch_at) Counters from table(s): p_nbsc_ho掉话率掉话率的详细组成TC

7、H_RADIO_FAIL (无线掉话)TCH_RF_OLD_HO(切换掉话)TCH_TR_FAIL 和 TCH_TR_FAIL_OLD TR掉话（2992 2993告警）TCH_ABIS_FAIL_CALL和TCH_ABIS_FAIL_OLD 和TCH_LAPD_FAIL （传输方面的掉话）TCH_A_IF_FAIL_CALL和TCH_A_IF_FAIL_OLD （A接口掉话）TCH话务量和TCH拥塞率RAWBLOCK(CALL BLOCK) 在本小区发起的呼叫请求无法在本小区分配得到TCH信道的拥塞,符合Erlang_B 表的计算公式。 BLOCK_8D 手机发起的呼叫请求无法在服务小区或者

8、邻区中分配得到TCH信道的拥塞。终端用户感知到的拥塞。上下行话音质量手机在服务小区发起呼叫请求后，若BSC发现服务小区无可用TCH,允许在其邻区内分配TCH的功能。SDCCHTCHcongested ParametersValuedrMethod0: Improvement not in use 1: Threshold evaluation methoddrThreshold-47 -110 dBmDirect Retry功能（定向重试）切换失败率切换失败详细组成 MSC控制下的切换失败。 BSC控制下的切换失败。 小区内部切换失败。手机呼叫流程简图M M o ob bi il le e O

9、 O r ri ig gi in na at ti in ng g C C a al ll lA A u ut th he en nt ti ic ca at ti io on nC C i ip ph he er ri in ng g M M o od de e S Se et tt ti in ng gS Se er rv vi ic ce e R R e eq qu ue es st tImmediate assignmentC C H H A A N N R R E E Q QI IM M M M A A S SS SI IG G N NC C M M S SE E R R V V R

10、 R E E Q QA A U U T T H H R R E E Q QA A U U T T H H R R E E S SC C I IP PH H M M O O D D C C M M D DC C I IP PH H M M O O D D C C O O M MM M S SN N E E T T W W O O R R K KC al l C onfi rm ati onC al l C onfi rm ati onC al l A cceptedC al l A cceptedA ssi gnm ent of Traffi c C hannelA ssi gnm ent of

11、 Traffi c C hannelCall InitiationSETU PSETU PC A LL PR O CC A LL PR O CA SSIG N C M DA SSIG N C M DA LER TA LER TC O N N EC TC O N N EC TC O N N EC T A C KC O N N EC T A C KA SSIG N C O MA SSIG N C O MM obi l e Term i nati ng C al lM obi l e Term i nati ng C al lA uthenti cati onA uthenti cati onC i

12、 pheri ng M ode Setti ngC i pheri ng M ode Setti ngServi ce R equestServi ce R equestImmediate assignmentPA G R EQPA G R EQC H A N R EQC H A N R EQPA G R ESPA G R ESA U TH R EQA U TH R EQA U TH R ESA U TH R ESC IPH M O D C M DC IPH M O D C M DC IPH M O D C O MC IPH M O D C O MM SM SN ETW O R KN ETW

13、O R KIM M A SSIG NIM M A SSIG NC Ca al ll l C Co on nf fi ir rm ma at ti io on nC Ca al ll l A Ac cc ce ep pt te ed dA As ss si ig gn nm me en nt t o of f T Tr ra af ff fi ic c C Ch ha an nn ne el lCall InitiationS SE ET TU UP PC CA AL LL L C CO ON NF FA AS SS SI IG GN N C CM MD DA AL LE ER RT TC CO

14、 ON NN NE EC CT TC CO ON NN NE EC CT T A AC CK KA AS SS SI IG GN N C CO OM M手机呼叫流程简图小区掉话问题分析查看小区有无硬件告警，确定有无硬件问题 重要告警如7745 2993 7744 等ZERO指令有无重大干扰情况存在提取掉话详细指标，分析其掉话主要发生的原因。 a. TCH_RADIO_FAIL (无线掉话)高，频率干扰和无线覆盖造成 b . TCH_RF_OLD_HO(切换掉话)高，切换失败造成 c . TCH_TR_FAIL 和 TCH_TR_FAIL_OLD TR掉话（2992 2993告警） TC板件问题 d . TCH_ABIS_FAIL_CALL和TCH_ABIS_FAIL_OLD 和TCH_LAPD_FAIL 高（传输方面的掉话）传输原因、干扰等 e . TCH_A_IF_FA